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| author | Shimoda, Yoshihiro <yoshihiro.shimoda.uh@renesas.com> | 2012-04-20 14:50:36 +0900 |
|---|---|---|
| committer | Grant Likely <grant.likely@secretlab.ca> | 2012-05-19 22:37:16 -0600 |
| commit | a3633fe7aa7022e2e9b2b799a0cbf3d6944d8ba5 (patch) | |
| tree | acd8bfc00d867708e90b8e28e84de5617c9c7ac4 /include/linux/spi/rspi.h | |
| parent | d195f7bebc14ece71bf11d09f1726ee6f6b4f4b9 (diff) | |
| download | linux-stable-a3633fe7aa7022e2e9b2b799a0cbf3d6944d8ba5.tar.gz linux-stable-a3633fe7aa7022e2e9b2b799a0cbf3d6944d8ba5.tar.bz2 linux-stable-a3633fe7aa7022e2e9b2b799a0cbf3d6944d8ba5.zip | |
spi/rspi: add dmaengine support
This patch adds dmaengine supporting using sh_dma driver. The module
receives data by DMAC, it also needs TX DMAC to generate SPI's clocks.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'include/linux/spi/rspi.h')
| -rw-r--r-- | include/linux/spi/rspi.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/linux/spi/rspi.h b/include/linux/spi/rspi.h new file mode 100644 index 000000000000..900f0e328235 --- /dev/null +++ b/include/linux/spi/rspi.h @@ -0,0 +1,31 @@ +/* + * Renesas SPI driver + * + * Copyright (C) 2012 Renesas Solutions Corp. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + +#ifndef __LINUX_SPI_RENESAS_SPI_H__ +#define __LINUX_SPI_RENESAS_SPI_H__ + +struct rspi_plat_data { + unsigned int dma_tx_id; + unsigned int dma_rx_id; + + unsigned dma_width_16bit:1; /* DMAC read/write width = 16-bit */ +}; + +#endif |